Method for error correction in digitally encoded speech

Details Method for error correction in digitally encoded speech Method for error correction in digitally encoded speech

1987-06-04

1989-01-31

Atkinson, Charles E.

Excavating

371 31, 381 31, 381 46, G06F 1110, G10L 100

Patent

active

048021717

ABSTRACT:
A system and method for error correction in communication systems for transmission of digitized speech signals. Sub-band coding is preferably applied to the input signal, and the sample information and the side information provided. An error detection code (EDC) is applied to at least a portion of the side information and an error correction code (ECC) is applied over the side information and the EDC. A second EDC is applied to the ECC. These information signals and error detection and correction codes are multiplexed with the protected portion of the side information and the error correction code separated by at least the sample information. Speech signals are thus transmitted and reconstituted with improved quality with a minimum data rate required.

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